:Product: 20010506RSGA.txt :Issued: 2001 May 06 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 126 Issued at 2200Z on 06 May 2001 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was low. Region 9445 (N23W30) was the most active of the seven spotted regions. It produced a C7/Sf flare at 2011 UTC, the largest of the few flares occurring during the period. The disk can be described as stable, no new regions were assigned, and the limbs were quiet. IB. Solar Activity Forecast: Solar activity is expected to be low. IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to persist at quiet to unsettled levels, with a chance of periodic active conditions during the latter half of the interval. A high speed stream may affect the field May 8-9. III. Event Probabilities 07 May-09 May Class M 30/30/30 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 May 155 Predicted 07 May-09 May 150/145/140 90 Day Mean 06 May 169 V. Geomagnetic A Indices Observed Afr/Ap 05 May 002/005 Estimated Afr/Ap 06 May 005/007 Predicted Afr/Ap 07 May-09 May 005/008-010/010-010/010 VI. Geomagnetic Activity Probabilities 07 May-09 May A. Middle Latitudes Active 25/30/30 Minor storm 10/10/10 Major-severe storm 01/05/05 B. High Latitudes Active 30/40/40 Minor storm 10/10/10 Major-severe storm 05/05/05